PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Trifolium pratense
ARF Family
Species TF ID Description
Tp57577_TGAC_v2_mRNA1034ARF family protein
Tp57577_TGAC_v2_mRNA11881ARF family protein
Tp57577_TGAC_v2_mRNA11936ARF family protein
Tp57577_TGAC_v2_mRNA12096ARF family protein
Tp57577_TGAC_v2_mRNA13127ARF family protein
Tp57577_TGAC_v2_mRNA16079ARF family protein
Tp57577_TGAC_v2_mRNA1747ARF family protein
Tp57577_TGAC_v2_mRNA18922ARF family protein
Tp57577_TGAC_v2_mRNA2009ARF family protein
Tp57577_TGAC_v2_mRNA20534ARF family protein
Tp57577_TGAC_v2_mRNA20543ARF family protein
Tp57577_TGAC_v2_mRNA20932ARF family protein
Tp57577_TGAC_v2_mRNA2134ARF family protein
Tp57577_TGAC_v2_mRNA21936ARF family protein
Tp57577_TGAC_v2_mRNA26328ARF family protein
Tp57577_TGAC_v2_mRNA27130ARF family protein
Tp57577_TGAC_v2_mRNA29460ARF family protein
Tp57577_TGAC_v2_mRNA29461ARF family protein
Tp57577_TGAC_v2_mRNA30354ARF family protein
Tp57577_TGAC_v2_mRNA31450ARF family protein
Tp57577_TGAC_v2_mRNA34036ARF family protein
Tp57577_TGAC_v2_mRNA35140ARF family protein
Tp57577_TGAC_v2_mRNA35520ARF family protein
Tp57577_TGAC_v2_mRNA38681ARF family protein
Tp57577_TGAC_v2_mRNA5832ARF family protein
Tp57577_TGAC_v2_mRNA6340ARF family protein
Tp57577_TGAC_v2_mRNA9910ARF family protein
ARF Family Introduction

Auxin response factors (ARF) are transcription factors that regulate the expression of auxin response genes. ARFs bind with specificity to TGTCTC auxin response elements (AuxRE) in promoters of these genes and function in combination with Aux/IAA (auxin/indole acetic acid) repressors, which dimerize with ARF activators in an auxin-regulated manner.

Most ARFs consist of an amino-terminal DNA-binding domain (DBD), a middle region that functions as an activation domain (AD) or repression domain (RD), and a carboxy-terminal dimerization domain (CTD). The ARF DBD is classified as a plant-specific B3-type, but requires additional amino-terminal and carboxy-terminal amino acids for efficient in vitro binding to TGTCTC AuxREs.

The ARF ADs and RDs are located just carboxy-terminal to the DBDs and contain biased amino acid sequences. ARF ADs are enriched in glutamine along with serine and leucine residues, while ARF RDs are enriched in serine, proline, leucine and glycine residues.

Guilfoyle TJ, Hagen G.
Auxin response factors.
Curr Opin Plant Biol, 2007. 10(5): p. 453-60.
PMID: 17900969